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Reika [66]
3 years ago
12

Vector u has its initial point at (21, 12) and its terminal point at (19,-8). Vector v has a direction opposite that of u, whose

magnitude is five times
the magnitude of v. Which is the correct form of vector v expressed as a linear combination of the unit vectors i and j?
A.
v= -101 + 4j
B.
v=-0,41 - 4j
C.
v=0,41 +4j
D.
v = 15i + 100)
Mathematics
1 answer:
Svetllana [295]3 years ago
6 0
B
v=-101+4j
Because i had that question like literally right now
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write an equation in slope intercept form for the line that passes through the point, and is perpendicular to the line y=-1/3x+9
aleksklad [387]

Answer:

Step-by-step explanation:

y=-1/3x+9

This is written in the format y=mx+b, where m is the slope and b the y-intercept (the value of y when x=0).

Perpendicular lines have a slope that is the negative inverse of the slope of the reference line, in this case -(1/3).  The new slope is 3.  equation is:

y = 3x + b

To find b, enter the given point, (-6,-2) and solve for b:

y = 3x + b

-2 = 3(-6) + b

-2 = -18 + b

b = 16

The full equation is y=3x + 18

8 0
2 years ago
What is another name for line m?
Ganezh [65]
I’m pretty sure it’s the slope
5 0
2 years ago
The angles in a triangle have<br><br> measures of 61°, (3z), (z-5)<br><br> What is the value of z?
vfiekz [6]

Answer:

z = 31

Step-by-step explanation:

A triangle adds up to 180 degrees

Therefore this equation is formed: 61 + 3z + z -5 = 180

Simplify:

4z = 124

z = 31

5 0
2 years ago
Algebra 1
zhannawk [14.2K]

Answer:

The actual wide of the lawn is 24 meters

Step-by-step explanation:

we know that

The scale drawing is

\frac{2}{1}\frac{mm}{m}

using proportion

Find out how wide  is the actual lawn if the lawn is 48 millimeters in the drawing

Let

x -----> the actual wide of the lawn

\frac{2}{1}\frac{mm}{m}=\frac{48}{x}\frac{mm}{m}\\\\x=48/2\\\\x=24\ m

therefore

The actual wide of the lawn is 24 meters

6 0
3 years ago
function expressed by formula y=-0.5x is there a value of x for which y=-150 if there is such value then solve it
vekshin1

Answer:

3000

Step-by-step explanation:

y=-.05x

y=-150

x*.05=150

150/.05=3000

7 0
2 years ago
Read 2 more answers
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